Modular Pet Waste Containment with Absorbent Base and Turf Top
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Solution Overview
Problem
Current pet waste containment systems for dogs are cumbersome to transport and clean, offer limited area coverage, and are difficult to assemble for larger spaces, making them impractical for urban pet owners with multiple pets.
Innovation Solution
A portable sanitation apparatus comprising a micro-composite structure with two primary layers: an artificial turf-like top layer and an absorbent bottom layer, which can be easily disassembled, cleaned, and combined to form a macro-composite for increased coverage, using engagement means like snaps and trays to prevent fluid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid bottom tray is used to contain urine and secure absorbent material, then urine containment is improved, but transportability and cleaning ease deteriorate
Solution Approach 1:
The system divides the containment structure into separate functional layers: a flexible base layer with integrated absorbent material and a separate artificial turf layer. This segmentation allows each layer to be optimized independently - the base layer provides containment while remaining flexible for transport and cleaning, while the turf layer provides the natural surface for pets.
Solution Approach 2:
The patent replaces the rigid tray with a flexible base layer made of thin film or flexible material that can contain urine while being easily transported and cleaned. The flexibility allows the base layer to conform to different surfaces and be rolled or folded for storage, eliminating the transport difficulties of rigid trays.
2Adaptability or versatility
If artificial turf is made porous to allow urine passage, then natural appearance is improved, but urine containment capability deteriorates
Solution Approach 1:
The system applies different properties to different layers: the artificial turf layer is made porous to provide natural appearance and comfort, while the base layer is made absorbent and containment-capable. Each layer performs its specific function locally, with the porous turf allowing urine passage while the base layer captures and contains it.
Solution Approach 2:
The base layer acts as an intermediary between the porous artificial turf and the underlying surface. It receives urine that passes through the turf, absorbs and contains it, preventing direct contact with hard surfaces while maintaining the natural appearance benefit of porous turf.
3Area of stationary object
If multiple separate containment units are used to cover larger areas, then area coverage is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The system uses standardized modular units that can be universally applied to cover different area sizes. Each unit has the same structure and functionality, allowing them to be combined in various configurations (2x2, 3x3, L-shapes, etc.) to cover different areas without requiring different product designs.
Solution Approach 2:
The artificial turf layer can be folded or rolled within the base layer when not in use, allowing the entire containment system to be compacted to a small size for storage or transport, then easily expanded when needed for use.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides efficient, hygienic pet waste containment and disposal, allowing for easy cleaning and modular expansion to cover larger areas, reducing the need for multiple product sizes and enhancing user convenience.
Implementation Method 1
an absorbent bottom layer, which can be easily disassembled, cleaned, and combined to form a macro-composite for increased coverage, using engagement means like snaps and trays to prevent fluid leakage
Implementation Method 2
The tray serves two purposes: it contains any urine that might seep through or drip down the sides of the absorbent material
Data Source
AI summary
Herein described is a portable sanitation apparatus for pet waste disposal and method for using the same comprising a micro-composite structure and a means for securing micro-composite structures together to form a macro-composite structure in variable geometric Configurations and sizes for greater area coverage.


